1. Ireland is not a part of the Schengen Agreement. A Schengen visa or French residence permit does not entitle you to travel to Ireland without a visa.
People Also Ask
You cannot travel to the UK with just a Schengen. The UK is not a part of the Schengen and will soon not be a part of the EU as well. As a result, they have an independent visa regime. If you want to enter the UK, you will need a UK visa.
Passing Border Control means entering Ireland, and you are not allowed to enter Ireland without a visa unless you are visa-exempt. Anyone who is subject to Irish visas and has to pass through Border Control during their transit needs to have an Irish entry visa (Ireland short stay “C” visa).
If you are a U.S. permanent resident who wishes to travel to the UK, you may need to apply for a UK visa for green card holders. You must pick the right UK visa type, complete the online application, schedule and attend your biometric appointment, and send your application to the British Consulate.